386858249 has 2 divisors, whose sum is σ = 386858250. Its totient is φ = 386858248.

The previous prime is 386858209. The next prime is 386858257. The reversal of 386858249 is 942858683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381499024 + 5359225 = 19532^2 + 2315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386858249 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 386858249.

It is not a weakly prime, because it can be changed into another prime (386858209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193429124 + 193429125.

It is an arithmetic number, because the mean of its divisors is an integer number (193429125).

Almost surely, 2^386858249 is an apocalyptic number.

It is an amenable number.

386858249 is a deficient number, since it is larger than the sum of its proper divisors (1).

386858249 is an equidigital number, since it uses as much as digits as its factorization.

386858249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 53.

The square root of 386858249 is about 19668.7124387948. The cubic root of 386858249 is about 728.6471780178.

The spelling of 386858249 in words is "three hundred eighty-six million, eight hundred fifty-eight thousand, two hundred forty-nine".